Blood flow reserve fraction measurement method and device based on medical imaging

The lesion area of ​​coronary blood vessels is identified through medical imaging technology and the blood flow reserve score is calculated, which solves the problem that microcirculation resistance is not considered in the prior art, improves the measurement accuracy and avoids surgical damage.

CN114742821BActive Publication Date: 2025-04-04SHENZHEN RAYSIGHT INTELLIGENT MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202210539773.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-05-18
Publication Date
2025-04-04
Estimated Expiration
2042-05-18

AI Technical Summary

Technical Problem

The existing non-invasive CTFFR technology fails to effectively consider microcirculation resistance when measuring blood flow reserve fractions, resulting in a deviation from the actual situation and inaccurate accuracy.

Method used

By obtaining medical imaging images of the coronary area, the cardiomyopathy area is identified, and the lesion areas corresponding to each coronary blood vessel are identified based on the spatial geometric relationship of the coronary blood vessels, and the blood flow reserve score is finally calculated based on these lesion areas.

Benefits of technology

It improves the accuracy of blood flow reserve score measurement, avoids the damage to the patient's body by interventional surgery, and provides a more accurate assessment of myocardial blood flow status.

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Abstract

The present application relates to a method, device, computer equipment, storage medium and computer program product for measuring blood flow reserve fraction based on medical imaging. The method comprises: obtaining a medical imaging image of a coronary region, identifying the medical imaging image, and obtaining a myocardial lesion region; based on the spatial geometric relationship of each coronary vessel in the medical imaging image, identifying the lesion region corresponding to each coronary vessel in the myocardial lesion region; based on the lesion region corresponding to each coronary vessel, obtaining the blood flow reserve fraction of each coronary vessel. The use of this method can avoid damage to the patient's body caused by interventional surgery and improve the accuracy of obtaining the blood flow reserve fraction.
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